Really sorry to ask - is it possible at all for the Chagohod to be without the Falmer? The only other mod I've found that contains them (at all) is the Incubated Eggs mod, which only spawns them rather than mounts. (Sorry if this sounds like a request; I'm wondering if there's some option of some sort since they seem like the perfect mount for a future character I'm planning to play as.)

There's no "Fat" Dragon. Theyr'e called SERPENT DRAGONS. Because of it's head looking like a snake, though technically speaking serpents basically look like giant eels out of Greek Mythology. Though the Kraken is real, well not THE Kraken but a squid that looks identical.

1) You have to put the .esp at the bottom of the list in the "Data Files" when you launch the game to obtain the 23 books...(Normally, this is done automatically)

2) You must buy the “Spell tome: Summon XXXX”, at Farengar Secret-Fire in Dragonsreach/Fort Dragon (Whiterun/Blancherive) or with an other "Spell Vendor" (ex: Sybille Stentor in the Blue Palace/Palais Bleu in Solitude).

with the books, you have the spells...

If you have not bought a book/spell, NO PROBLEM, you can always put again this mod at the bottom of the list… buy the books, etc...

was gonna buy a horse from whiterun...but when i got there the stablemaster was dead and i was gonna take his horse but i couldnt...i got a key from him though is there some way to open up stables?cause its said in one of my mount mods they would be in the stable.

Yes I have, I can fast travel there, but once I teleported to solstheim it does not work anymore. So I just cant fast travel on solstheim, and yes I also deleted the esp and the bsa, hopefully it'll work again after redownloading wich takes about 20 hours with my internet..